Uranium-235 Fission

概述

A uranium-235 nucleus absorbs a slow neutron and splits into barium-141 and krypton-92, releasing three neutrons and approximately 200 MeV of energy. This is one of many possible fission product combinations. The three released neutrons can trigger further fissions, creating a chain reaction. One kg of U-235 releases energy equivalent to 20,000 tonnes of TNT.

参与者

日常示例

Nuclear power plants use controlled U-235 fission to generate about 10% of the world's electricity without direct CO₂ emissions.

工业重要性

核裂变每年从全球440座反应堆产生约2700 TWh电力，为电网提供稳定的基荷电源。